All of the OpenStack services are already running Mitaka, since they're all on Trusty hosts. We have several hosts (e.g. labspuppetmaster1001/1002) which are using OpenStack clients on Jessie, and those are still set to Liberty because we don't yet have things set up properly to install Mitaka packages on Jessie.
- Make it work
- Update labpuppetmaster1001/1002
- Update labstore1004/1005
- Update hiera/labs.yaml to default to Mitaka